Equivalents for the Japko spark plug B103
The Japko B103 spark plug featuring reach 15.2–19.0 mm, heat range hot. Find its 167 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
Technical information Japko B103 spark plug
- Resistor
- no
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What can replace a Japko B103 spark plug?
The Japko B103 is interchangeable with: Bosch CH171, Champion W566, Denso G005, Bosch CH184, Bosch CH271, Bosch GLP112. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Japko B103?
Reach 15.2–19.0 mm, Heat range Hot, Resistor no, Seat Flat (gasket)
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.